Dune Core Modules (unstable)
twolevelmethod.hh
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1 // SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
171 std::cout<<"no aggregates="<<noAggregates<<" iso="<<isoAggregates<<" one="<<oneAggregates<<" skipped="<<skippedAggregates<<std::endl;
194 productBuilder.calculate(fineOperator.getmat(), *aggregatesMap_, *matrix_, pinfo, OverlapFlags());
276 void apply(X& x, X& b, [[maybe_unused]] double reduction, [[maybe_unused]] InverseOperatorResult& res)
The AMG preconditioner.
Class providing information about the mapping of the vertices onto aggregates.
Definition: aggregates.hh:560
A LeveTransferPolicy that used aggregation to construct the coarse level system.
Definition: twolevelmethod.hh:143
AggregationLevelTransferPolicy * clone() const
Clone the current object.
Definition: twolevelmethod.hh:214
void moveToFineLevel(typename FatherType::FineDomainType &fineLhs)
Updates the fine level linear system after the correction of the coarse levels system.
Definition: twolevelmethod.hh:207
void createCoarseLevelSystem(const O &fineOperator)
Algebraically creates the coarse level system.
Definition: twolevelmethod.hh:154
Class representing the properties of an edge in the matrix graph.
Definition: dependency.hh:39
Abstract base class for transfer between levels and creation of the coarse level system.
Definition: twolevelmethod.hh:38
CO CoarseOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:57
virtual void moveToCoarseLevel(const FineRangeType &fineRhs)=0
Transfers the data to the coarse level.
FineOperatorType::range_type FineRangeType
The type of the range of the fine level operator.
Definition: twolevelmethod.hh:48
virtual void createCoarseLevelSystem(const FineOperatorType &fineOperator)=0
Algebraically creates the coarse level system.
CoarseOperatorType::range_type CoarseRangeType
The type of the range of the coarse level operator.
Definition: twolevelmethod.hh:61
CoarseRangeType & getCoarseLevelRhs()
Get the coarse level right hand side.
Definition: twolevelmethod.hh:78
virtual ~LevelTransferPolicy()
Destructor.
Definition: twolevelmethod.hh:124
CoarseDomainType lhs_
The coarse level lhs.
Definition: twolevelmethod.hh:130
std::shared_ptr< CoarseOperatorType > operator_
the coarse level linear operator.
Definition: twolevelmethod.hh:132
CoarseRangeType rhs_
The coarse level rhs.
Definition: twolevelmethod.hh:128
std::shared_ptr< CoarseOperatorType > & getCoarseLevelOperator()
Get the coarse level operator.
Definition: twolevelmethod.hh:70
virtual void moveToFineLevel(FineDomainType &fineLhs)=0
Updates the fine level linear system after the correction of the coarse levels system.
FO FineOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:44
CoarseOperatorType::domain_type CoarseDomainType
The type of the domain of the coarse level operator.
Definition: twolevelmethod.hh:65
CoarseDomainType & getCoarseLevelLhs()
Get the coarse level left hand side.
Definition: twolevelmethod.hh:87
virtual LevelTransferPolicy * clone() const =0
Clone the current object.
FineOperatorType::domain_type FineDomainType
The type of the domain of the fine level operator.
Definition: twolevelmethod.hh:52
A policy class for solving the coarse level system using one step of AMG.
Definition: twolevelmethod.hh:234
OneStepAMGCoarseSolverPolicy(const SmootherArgs &args, const Criterion &c)
Constructs the coarse solver policy.
Definition: twolevelmethod.hh:253
AMGInverseOperator CoarseLevelSolver
The type of solver constructed for the coarse level.
Definition: twolevelmethod.hh:315
OneStepAMGCoarseSolverPolicy(const OneStepAMGCoarseSolverPolicy &other)
Copy constructor.
Definition: twolevelmethod.hh:257
O::range_type X
The type of the range and domain of the operator.
Definition: twolevelmethod.hh:239
C Criterion
The type of the crition used for the aggregation within AMG.
Definition: twolevelmethod.hh:241
Dune::Amg::SmootherTraits< S >::Arguments SmootherArgs
The type of the arguments used for constructing the smoother.
Definition: twolevelmethod.hh:245
O Operator
The type of the linear operator used.
Definition: twolevelmethod.hh:237
CoarseLevelSolver * createCoarseLevelSolver(P &transferPolicy)
Constructs a coarse level solver.
Definition: twolevelmethod.hh:325
AMG< Operator, X, Smoother > AMGType
The type of the AMG construct on the coarse level.
Definition: twolevelmethod.hh:247
S Smoother
The type of the smoother used in AMG.
Definition: twolevelmethod.hh:243
Attaches properties to the edges and vertices of a graph.
Definition: graph.hh:978
VertexDescriptor maxVertex() const
Get the maximal vertex descriptor.
Definition: twolevelmethod.hh:353
CoarseOperatorType::range_type CoarseRangeType
The type of the range of the coarse level operator.
Definition: twolevelmethod.hh:380
FineOperatorType::domain_type FineDomainType
The type of the domain of the fine level operator.
Definition: twolevelmethod.hh:371
FO FineOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:363
CoarseLevelSolverPolicy::CoarseLevelSolver CoarseLevelSolver
The type of the coarse level solver.
Definition: twolevelmethod.hh:358
CSP CoarseLevelSolverPolicy
The type of the policy for constructing the coarse level solver.
Definition: twolevelmethod.hh:356
CoarseOperatorType::domain_type CoarseDomainType
The type of the domain of the coarse level operator.
Definition: twolevelmethod.hh:384
TwoLevelMethod(const FineOperatorType &op, std::shared_ptr< SmootherType > smoother, const LevelTransferPolicy< FineOperatorType, CoarseOperatorType > &policy, CoarseLevelSolverPolicy &coarsePolicy, std::size_t preSteps=1, std::size_t postSteps=1)
Constructs a two level method.
Definition: twolevelmethod.hh:404
virtual SolverCategory::Category category() const
Category of the preconditioner (see SolverCategory::Category)
Definition: twolevelmethod.hh:466
FineOperatorType::range_type FineRangeType
The type of the range of the fine level operator.
Definition: twolevelmethod.hh:367
CSP::Operator CoarseOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:376
S SmootherType
The type of the fine level smoother.
Definition: twolevelmethod.hh:388
Class representing a node in the matrix graph.
Definition: dependency.hh:126
virtual void apply(X &x, X &b, InverseOperatorResult &res)=0
Apply inverse operator,.
Adapter to turn a random access iterator into a property map.
Definition: propertymap.hh:108
The negation of a set. An item is contained in the set if and only if it is not contained in the nega...
Definition: enumset.hh:96
Base class for matrix free definition of preconditioners.
Definition: preconditioner.hh:32
Provides a class for building the galerkin product based on a aggregation scheme.
SmootherTraits< Smoother >::Arguments SmootherArgs
The argument type for the construction of the smoother.
Definition: amg.hh:100
Operator Operator
The matrix operator type.
Definition: amg.hh:73
void presmooth(LevelContext &levelContext, size_t steps)
Apply pre smoothing on the current level.
Definition: smoother.hh:406
void postsmooth(LevelContext &levelContext, size_t steps)
Apply post smoothing on the current level.
Definition: smoother.hh:428
Define general, extensible interface for operators. The available implementation wraps a matrix.
Define general, extensible interface for inverse operators.
The default class for the smoother arguments.
Definition: smoother.hh:38
A property map that applies the identity function to integers.
Definition: propertymap.hh:293
Statistics about the application of an inverse operator.
Definition: solver.hh:48
@ sequential
Category for sequential solvers.
Definition: solvercategory.hh:25
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